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/* packet_history.c
* packet history related functions 2004 Ulf Lamping
*
* $Id: packet_history.c 40518 2012-01-15 21:59:11Z jmayer $
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#include <gtk/gtk.h>
#include "../file.h"
#include "../globals.h"
#include "ui/gtk/menus.h"
#include "ui/gtk/packet_history.h"
static GList *history_current = NULL;
static GList *history_list = NULL;
static gboolean ignore_jump = FALSE;
#if 0
/* print the complete packet history to console */
static void history_print(void) {
GList *current = g_list_first(history_list);
printf(" List:\n");
while(current) {
if(current == history_current) {
printf(" Row: %u *\n", GPOINTER_TO_INT(current->data));
} else {
printf(" Row: %u\n", GPOINTER_TO_INT(current->data));
}
current = g_list_next(current);
}
}
#endif
/* adjust menu and toolbar sensitivity depending on the history entries */
static void adjust_menus(void) {
if(history_current) {
set_menus_for_packet_history(
(g_list_previous(history_current) != NULL),
(g_list_next(history_current) != NULL));
} else {
/* we don't have any history */
set_menus_for_packet_history(FALSE, FALSE);
}
/* history_print(); */
}
/* clear the history list from the given entry to the end of the list */
static void clear_list(GList *current) {
GList *next_packet;
while(current) {
next_packet = g_list_next(current);
history_list = g_list_remove(history_list, current->data);
current = next_packet;
}
}
/* add an entry to the history list */
void packet_history_add(gint row) {
if(row < 1) {
/* Not a valid row number */
return;
}
if(ignore_jump) {
/* we jumping back and forward in history, so don't change list */
return;
}
if (history_current) {
/* clear list behind current position */
clear_list(g_list_next(history_current));
/* ignore duplicates */
if(GPOINTER_TO_INT(history_current->data) == row) {
adjust_menus();
return;
}
}
/* add row */
history_list = g_list_append(history_list, GINT_TO_POINTER(row));
history_current = g_list_last(history_list);
adjust_menus();
}
void packet_history_clear(void) {
/* clear "old" list */
clear_list(history_list);
history_current = NULL;
/* add the currently selected first row */
packet_history_add(0);
adjust_menus();
}
static void packet_history_back(void) {
GList *previous;
if(history_current) {
previous = g_list_previous(history_current);
/* do we have a previous entry */
if(previous) {
history_current = previous;
/* goto that packet but don't change history */
ignore_jump = TRUE;
cf_goto_frame(&cfile, GPOINTER_TO_INT(previous->data));
ignore_jump = FALSE;
}
}
adjust_menus();
}
static void packet_history_forward(void) {
GList *next;
if(history_current) {
next = g_list_next(history_current);
/* do we have a forward entry? */
if(next) {
history_current = next;
/* goto that packet but don't change history */
ignore_jump = TRUE;
cf_goto_frame(&cfile, GPOINTER_TO_INT(next->data));
ignore_jump = FALSE;
}
}
adjust_menus();
}
void history_forward_cb(GtkWidget *widget _U_, gpointer data _U_) {
packet_history_forward();
}
void history_back_cb(GtkWidget *widget _U_, gpointer data _U_) {
packet_history_back();
}
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